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-rwxr-xr-xlib/src/protocol/icmp.c229
1 files changed, 229 insertions, 0 deletions
diff --git a/lib/src/protocol/icmp.c b/lib/src/protocol/icmp.c
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+++ b/lib/src/protocol/icmp.c
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+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+#include "icmp.h"
+
+#include "../error.h"
+#include "../ops.h"
+
+DECLARE_get_interest_locator (icmp, UNEXPECTED)
+DECLARE_set_interest_locator (icmp, UNEXPECTED)
+DECLARE_get_interest_name (icmp, UNEXPECTED)
+DECLARE_set_interest_name (icmp, UNEXPECTED)
+DECLARE_get_interest_name_suffix (icmp, UNEXPECTED)
+DECLARE_set_interest_name_suffix (icmp, UNEXPECTED)
+DECLARE_get_data_locator (icmp, UNEXPECTED)
+DECLARE_set_data_locator (icmp, UNEXPECTED)
+DECLARE_get_data_name (icmp, UNEXPECTED)
+DECLARE_set_data_name (icmp, UNEXPECTED)
+DECLARE_get_data_name_suffix (icmp, UNEXPECTED)
+DECLARE_set_data_name_suffix (icmp, UNEXPECTED)
+DECLARE_get_data_pathlabel (icmp, UNEXPECTED)
+DECLARE_set_data_pathlabel (icmp, UNEXPECTED)
+DECLARE_update_data_pathlabel (icmp, UNEXPECTED)
+DECLARE_get_lifetime (icmp, UNEXPECTED)
+DECLARE_set_lifetime (icmp, UNEXPECTED)
+DECLARE_get_length (icmp, UNEXPECTED)
+DECLARE_get_payload_length (icmp, UNEXPECTED)
+DECLARE_set_payload_length (icmp, UNEXPECTED)
+ int icmp_init_packet_header (hicn_type_t type, hicn_protocol_t * h)
+{
+ h->icmp = (_icmp_header_t)
+ {
+ .type = 0,.code = 0,.csum = 0,};
+
+ return HICN_LIB_ERROR_NONE; // CHILD_OPS(init_packet_header, type, h->icmp);
+}
+
+int
+icmp_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t * h)
+{
+ h->icmp.csum = 0;
+
+ return CHILD_OPS (reset_interest_for_hash, type, h);
+}
+
+int
+icmp_reset_data_for_hash (hicn_type_t type, hicn_protocol_t * h)
+{
+ h->icmp.csum = 0;
+
+ return CHILD_OPS (reset_data_for_hash, type, h);
+}
+
+int
+icmp_update_checksums (hicn_type_t type, hicn_protocol_t * h,
+ u16 partial_csum, size_t payload_length)
+{
+ return HICN_LIB_ERROR_NOT_IMPLEMENTED;
+// h->icmp.csum = 0;
+// h->icmp.csum = csum(h->bytes, TCP_HDRLEN + payload_length, ~partial_csum);
+//
+// return CHILD_OPS(update_checksums, type, h->icmp, 0, payload_length);
+}
+
+int
+icmp_verify_checksums (hicn_type_t type, hicn_protocol_t * h,
+ u16 partial_csum, size_t payload_length)
+{
+ return HICN_LIB_ERROR_NOT_IMPLEMENTED;
+// if (csum(h->bytes, TCP_HDRLEN + payload_length, ~partial_csum) != 0)
+// return HICN_LIB_ERROR_CORRUPTED_PACKET;
+// return CHILD_OPS(verify_checksums, type, h->icmp, 0, payload_length);
+}
+
+int
+icmp_rewrite_interest (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * addr_new,
+ ip46_address_t * addr_old)
+{
+ return HICN_LIB_ERROR_NOT_IMPLEMENTED;
+// u16 *icmp_checksum = &(h->icmp.csum);
+//
+// /*
+// * Padding fields are set to zero so we can apply checksum on the
+// * whole struct by interpreting it as IPv6 in all cases
+// *
+// * v4 code would be:
+// * csum = ip_csum_sub_even (*icmp_checksum, h->ipv4.saddr.as_u32);
+// * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32);
+// */
+// u16 csum = ip_csum_sub_even (*icmp_checksum, h->ipv6.saddr.as_u64[0]);
+// csum = ip_csum_sub_even (csum, h->ipv6.saddr.as_u64[1]);
+// csum = ip_csum_add_even (csum, h->ipv6.saddr.as_u64[0]);
+// csum = ip_csum_add_even (csum, h->ipv6.saddr.as_u64[1]);
+//
+// *icmp_checksum = ip_csum_fold (csum);
+//
+// return HICN_LIB_ERROR_NONE;
+}
+
+int
+icmp_rewrite_data (hicn_type_t type, hicn_protocol_t * h,
+ const ip46_address_t * addr_new, ip46_address_t * addr_old,
+ const hicn_faceid_t face_id)
+{
+ return HICN_LIB_ERROR_NOT_IMPLEMENTED;
+// u16 *icmp_checksum = &(h->icmp.csum);
+//
+// /*
+// * Padding fields are set to zero so we can apply checksum on the
+// * whole struct by interpreting it as IPv6 in all cases
+// *
+// * v4 code would be:
+// * csum = ip_csum_sub_even (*icmp_checksum, h->ipv4.saddr.as_u32);
+// * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32);
+// */
+// u16 csum = ip_csum_sub_even (*icmp_checksum, addr_old->ip6.as_u64[0]);
+// csum = ip_csum_sub_even (*icmp_checksum, addr_old->ip6.as_u64[1]);
+// csum = ip_csum_add_even (csum, addr_new->ip6.as_u64[0]);
+// csum = ip_csum_add_even (csum, addr_new->ip6.as_u64[1]);
+//
+// csum = ip_csum_sub_even (csum, h->icmp.pathlabel);
+// icmp_update_data_pathlabel(type, h, face_id);
+// csum = ip_csum_add_even (csum, h->icmp.pathlabel);
+//
+// *icmp_checksum = ip_csum_fold (csum);
+//
+// return HICN_LIB_ERROR_NONE;
+}
+
+int
+icmp_get_current_header_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * header_length)
+{
+ *header_length = ICMP_HDRLEN;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+icmp_get_header_length (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * header_length)
+{
+ size_t child_header_length = 0;
+ int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+ if (rc < 0)
+ return rc;
+
+ *header_length = ICMP_HDRLEN + child_header_length;
+ return HICN_LIB_ERROR_NONE;
+}
+
+int
+icmp_get_signature_size (hicn_type_t type, const hicn_protocol_t * h,
+ size_t * signature_size)
+{
+ return CHILD_OPS (get_signature_size, type, h, signature_size);
+}
+
+int
+icmp_set_signature_size (hicn_type_t type, hicn_protocol_t * h,
+ size_t signature_size)
+{
+ return CHILD_OPS (set_signature_size, type, h, signature_size);
+}
+
+int
+icmp_set_signature_timestamp(hicn_type_t type, hicn_protocol_t * h,
+ uint64_t signature_timestamp)
+{
+ return CHILD_OPS (set_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+icmp_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t * h,
+ uint64_t * signature_timestamp)
+{
+ return CHILD_OPS (get_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+icmp_set_validation_algorithm (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t validation_algorithm)
+{
+ return CHILD_OPS (set_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+icmp_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t * h,
+ uint8_t * validation_algorithm)
+{
+ return CHILD_OPS (get_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+icmp_set_key_id (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t *key_id)
+{
+ return CHILD_OPS (set_key_id, type, h, key_id);
+}
+
+int
+icmp_get_key_id (hicn_type_t type, hicn_protocol_t * h,
+ uint8_t **key_id, uint8_t *key_id_size)
+{
+ return CHILD_OPS (get_key_id, type, h, key_id, key_id_size);
+}
+
+DECLARE_HICN_OPS (icmp);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */